CN205808290U - A kind of differential carrier dimension synthesis detection device - Google Patents

Abstract

The utility model discloses a comprehensive detection device for the size of a differential case, which comprises: a support for supporting and positioning the differential case to be detected, and the differential case to be detected can rotate on the support; gauge; a measuring block that can fit the spherical surface of the differential case to be tested, the needle of the first dial indicator can be pressed onto the measuring plane of the measuring block; the second dial gauge installed on the bracket, and the second hundred The pointer of the sub-meter can be pressed to the flange surface of the differential case to be tested; the third dial gauge installed on the bracket, the hands of the third dial gauge can be pressed to the differential case of the differential case to be tested. The tooth is installed on the outer circle; the fourth dial gauge installed on the bracket; the measuring rod that can pass through the two planetary wheel shaft holes of the differential case to be tested, the measuring rod can be pressed on the positioning surface of the bracket, and the first The needle of the four dial indicator can be pressed against the measuring stick. There is no need to replace inspection tools or move workpieces, which improves work efficiency and avoids measurement errors caused by repeated positioning.

Description

A comprehensive detection device for differential case size

technical field

The utility model relates to the technical field of differential gear detection, in particular to a comprehensive detection device for the size of a differential gear case.

Background technique

Domestic automobile companies usually need to detect the position of the spherical surface, the runout of the flange surface, the position of the shaft hole of the planetary wheel, and the runout of the gear installation position of the differential case when testing the differential case. Due to the need to use different inspection tools for measurement, when switching to different inspection tools, it is necessary to place the differential case at different reference positions for inspection, resulting in poor measurement accuracy and low detection efficiency.

Therefore, how to improve the detection accuracy and efficiency of the differential case is a technical problem to be solved urgently by those skilled in the art.

Utility model content

In view of this, the purpose of the present utility model is to provide a comprehensive detection device for the size of the differential case, so as to improve the detection accuracy and efficiency of the differential case.

In order to achieve the above object, the utility model provides the following scheme:

A comprehensive detection device for the size of a differential case, comprising:

Supporting and positioning the bracket of the differential case to be tested, and the differential case to be tested can be rotated on the bracket;

a first dial indicator mounted on said bracket;

A measuring block that can be attached to the spherical surface of the differential case to be tested, and the needle of the first dial indicator can be pressed onto the measuring plane of the measuring block;

A second dial gauge installed on the bracket, and the hands of the second dial gauge can be pressed onto the flange surface of the differential case to be tested;

A third dial gauge installed on the bracket, the needle of the third dial gauge can be pressed onto the outer circle of the differential case of the differential case to be tested by the teeth;

a fourth dial indicator mounted on said bracket;

The measuring rods that can pass through the shaft holes of the two planetary wheels of the differential case to be tested, the measuring rods can be pressed onto the positioning surface of the bracket, and the hands of the fourth dial indicator can be pressed to the on the measuring stick.

Preferably, in the above-mentioned comprehensive detection device for the size of the differential case, V-shaped grooves are respectively opened on the front support plate of the bracket and the rear support plate of the bracket, and the two ends of the differential case to be tested Can be respectively placed in the V-shaped groove of the front support plate and the V-shaped groove of the rear support plate.

Preferably, in the above-mentioned comprehensive detection device for the size of the differential case, a positioning block is also included;

The positioning blocks are arranged on the two groove surfaces of the V-shaped groove of the front support plate and the two groove surfaces of the V-shaped groove of the rear support plate.

Preferably, in the above-mentioned comprehensive detection device for the size of the differential case, the positioning surface of the bracket is the surface of a positioning reference block installed on the bracket for supporting and positioning the measuring rod.

Preferably, in the above-mentioned comprehensive detection device for the size of the differential case, the front support plate of the bracket and the rear support plate of the bracket are respectively provided with installation positioning holes;

The installation and positioning holes of the front support plate and the installation and positioning holes of the rear support plate are respectively installed at both ends of the differential case to be tested.

Preferably, the above-mentioned comprehensive detection device for the size of the differential case further includes a positioning sleeve installed in the installation positioning hole.

It can be seen from the above technical solutions that the differential case size comprehensive detection device provided by the utility model, when using it to detect the differential case to be detected, places the differential case to be detected on the bracket. When measuring the size of the spherical position, first fit the arc surface of the measuring block to the spherical surface of the differential case to be tested, and rotate the case of the differential case to be tested in a small range, so that the measuring plane of the measuring block is pressed to the first On the pointer of the dial indicator, and find the point with the most pressure gauge. At this time, the first dial indicator can be zeroed, or it can not be zeroed, and then the measuring block is taken out, and installed in the difference to be tested in the same way. On the other side of the spherical surface of the gearbox housing, another reading is measured in the same way, and the difference between the two readings is the position of the spherical surface; when measuring the runout of the flange surface, press the pointer of the second dial indicator On the flange surface of the differential case to be tested, set the indication of the second dial gauge to zero, and then rotate the case of the differential case to be tested for a circle to obtain the maximum and minimum readings, and the maximum and minimum values The difference is the runout size of the flange surface; when measuring the runout size of the gear installation position, press the pointer of the third dial indicator on the outer circle of the gear installation position of the differential case to be tested, and rotate the differential gear to be tested. The shell of the device shell is rounded to get the maximum and minimum values of the readings. The difference between the maximum and minimum values is the runout size of the gear installation position; Next, insert the measuring rod into the two planetary shaft holes of the differential case to be tested, and press the measuring rod on the positioning surface of the bracket, and then press the pointer of the fourth dial indicator on the measuring rod, with a small left and right Shake the differential case to be tested, read the maximum value on the fourth dial indicator, the maximum value is the position and size of the planetary shaft hole. The comprehensive detection device for the size of the differential case provided by the utility model realizes that all sizes can be measured once on this device, without changing the inspection tool or moving the workpiece, easy to operate, can greatly improve work efficiency, and can avoid repeated Measurement errors caused by positioning can better ensure product quality.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to these drawings on the premise of not paying novel efforts.

Fig. 1 is the structural schematic diagram of the comprehensive detection device of differential case size that the utility model provides;

Fig. 2 is the schematic diagram of the structure when the comprehensive detection device for the differential housing size provided by the utility model measures the position of the spherical surface;

Fig. 3 is the schematic diagram of the structure of the comprehensive detection device for the size of the differential case provided by the utility model when measuring the beating of the flange surface;

Fig. 4 is a schematic diagram of the structure of the comprehensive detection device for the size of the differential case provided by the utility model when measuring the position of the shaft hole of the planetary wheel;

Fig. 5 is a schematic diagram of the structure of the comprehensive detection device for the size of the differential case provided by the utility model when measuring the runout of the installed position of the teeth.

Among them, in Figure 1-5:

Differential housing to be tested 1, bracket 2, first dial indicator 3, measuring block 4, second dial indicator 5, flange surface 101, third dial indicator 6, outer circle of the differential housing gear installation position 102 , the fourth dial gauge 7, measuring rod 8, front support plate 201, rear support plate 202, V-shaped groove 203, positioning block 9, positioning reference block 10.

detailed description

In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Glossary:

Differential case: The case in which the differential gear and passive bevel gear are installed in the automotive differential.

Spherical position degree: The relative position degree of the spherical surface of the two planetary gears installed on the differential case.

Flange runout: The runout of the plane on which the passive bevel gear is mounted on the differential case.

Planet gear shaft hole position: the relative position of the two holes on the differential case where the planet gear shaft is installed.

The runout of the driven gear installation position: the runout of the outer circle of the driven bevel gear installed on the differential case.

Dial Indicator: A universal length measuring tool made using a precision rack and pinion mechanism.

Please refer to Figures 1-5, the utility model discloses a comprehensive detection device for the size of a differential case, including: a bracket 2 supporting and positioning the differential case 1 to be detected, and the differential case 1 to be detected can be mounted on the bracket 2; the first dial indicator 3 installed on the bracket 2; the measuring block 4 that can fit the spherical surface of the differential case 1 to be tested, the hands of the first dial indicator 3 can be pressed to the measuring block 4 On the measurement plane; the second dial indicator 5 installed on the bracket 2, and the hands of the second dial indicator 5 can be pressed onto the flange surface 101 of the differential case 1 to be tested; the first dial indicator installed on the bracket 2 Three dial gauges 6, the hands of the third dial gauge 6 can be pressed onto the outer circle 102 of the differential case gear mounting position of the differential case 1 to be detected; the fourth dial gauge 7 installed on the bracket 2; can Pass through the measuring rod 8 in the two planetary wheel shaft holes of the differential case 1 to be tested, one end of the measuring rod 8 can be pressed against the positioning surface of the bracket 2, and the hands of the fourth dial indicator 7 can be pressed against the position of the measuring rod 8 on the other end.

The differential case size comprehensive detection device provided by the utility model, when using it to detect the differential case 1 to be detected, the differential case 1 to be detected is placed on the bracket 2 . When measuring the size of the spherical position, first fit the arc surface of the measuring block 4 to the spherical surface of the differential case 1 to be detected, and rotate the housing of the differential case 1 to be detected in a small range, so that the measurement of the measuring block 4 Press the plane on the needle of the first dial gauge 3, and find out the point with the most pressure gauge. At this time, the first dial gauge 3 can be zeroed or not, and then the measuring block 4 is taken out, and press the same The method is installed on the other surface of the spherical surface of the differential case 1 to be tested, and another reading is measured according to the same method, and the difference between the two readings is the position of the spherical surface; when measuring the runout size of the flange surface 101, the The pointer of the second dial gauge 5 is pressed onto the flange surface 101 of the differential case 1 to be tested, and the indication of the second dial gauge 5 is zeroed, and then the housing of the differential case 1 to be tested is rotated for a circle , to get the maximum and minimum readings, the difference between the maximum and minimum is the runout size of the flange surface 101; On the outer circle of the toothed installation position of the gear case 1, rotate the housing of the differential case 1 to be tested for one week to obtain the maximum and minimum readings, and the difference between the maximum value and the minimum value is the beating size of the toothed installation position; when When measuring the position and size of the shaft hole of the planetary gear, zero the fourth dial gauge 7. The specific zeroing process is as follows: firstly, it is necessary to calibrate with the standard sample differential housing whose position of the shaft hole of the planetary gear is known, and place the measuring rod 8 penetrates into the two planetary shaft holes of the standard sample differential case, and presses the lower side of the measuring rod 8 on the positioning surface of the bracket 2, and presses the needle of the fourth dial indicator 7 on the upper side of the other end of the measuring rod 8 , shake the differential case left and right slightly, and at the position where the pressure gauge of the fourth dial indicator 7 is the most, the number is zeroed, and the calibration is completed; and press the measuring rod 8 on the positioning surface of the bracket 2, and then press the pointer of the fourth dial indicator 7 on the measuring rod 8, shake the differential case 1 to be tested slightly left and right, and read Get the maximum value on the fourth dial indicator 7, and the maximum value is the positional dimension of the planet wheel shaft hole.

The comprehensive detection device for the size of the differential case provided by the utility model realizes that all sizes can be measured once on this device, without changing the inspection tool or moving the workpiece, easy to operate, can greatly improve work efficiency, and can avoid repeated Measurement errors caused by positioning can better ensure product quality.

It should be noted that the operator can measure the dimensions of the differential case 1 to be tested in any order, not limited to the order disclosed in this embodiment.

In another embodiment provided by the present invention, the comprehensive detection device for differential case size in this embodiment is similar in structure to the comprehensive detection device for differential case size in Embodiment 1, and the similarities will not be repeated. , just introduce the differences.

In this embodiment, it is disclosed that the front support plate 201 of the bracket 2 and the rear support plate 202 of the bracket 2 are respectively provided with V-shaped grooves 203, and the two ends of the differential case 1 to be tested can be respectively placed on the front support plate 201. In the V-shaped groove 203 of the V-shaped groove 203 of the rear support plate 202 and the V-shaped groove 203 of the rear support plate 202, the support of the differential case 1 to be tested is realized through the V-shaped groove 203 .

In order to increase the positioning accuracy of the differential case 1 to be detected by the V-shaped groove 203, the utility model also discloses that the comprehensive detection device for the size of the differential case also includes a positioning block 9; the positioning block 9 is arranged on the V-shaped groove of the front support plate 201 203 and the two groove surfaces of the V-shaped groove 203 of the rear support plate 202, and the differential case 1 to be tested is directly pressed on the positioning block 9.

The utility model discloses that the positioning surface of the support 2 is the surface of the positioning reference block 10 installed on the support 2 for supporting the positioning measuring rod 8 . The positioning reference block 10 is installed on the inner side of the bracket 2, so that one end of the measuring rod 8 is pressed on the positioning reference block 10, and the other end is suspended in the air. It should be noted that it is not limited to the method of the positioning surface disclosed in the present invention, and other methods are also possible. For example, one side of the front support plate 201 of the bracket 2 can also be set to extend toward the rear support plate 202, so that the extended The upper surface of the board is the positioning surface.

In the third embodiment provided by the present utility model, the comprehensive detection device for differential case size in this embodiment is similar in structure to the comprehensive detection device for differential case size in Embodiment 1, and the similarities will not be repeated here. , just introduce the differences.

In this embodiment, another support form of the differential case 1 to be detected is disclosed: the front support plate 201 of the bracket 2 and the rear support plate 202 of the support 2 are respectively provided with installation positioning holes; the front support plate 201 The two ends of the differential case 1 to be tested are respectively installed in the installation positioning holes of the rear support plate 202 and the installation positioning holes. The installation of the differential case 1 to be tested is realized through the installation positioning holes on the front support plate 201 and the rear support plate 202 .

In order to improve the installation accuracy, the utility model discloses that the comprehensive detection device for the size of the differential case further includes a positioning sleeve installed in the installation positioning hole. On the one hand, the positioning sleeve realizes the support of the differential case 1 to be tested, and also realizes its positioning.

"First" and "second" in the present utility model are for distinction in description, and have no other special meanings.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A differential housing size comprehensive detection device, characterized in that it comprises: Supporting and positioning the bracket (2) of the differential case (1) to be tested, and the differential case (1) to be tested can rotate on the bracket (2); The first dial gauge (3) installed on the bracket (2); A measuring block (4) that can fit the spherical surface of the differential case (1) to be tested, and the hands of the first dial indicator (3) can be pressed onto the measuring plane of the measuring block (4) ; The second dial indicator (5) installed on the bracket (2), and the hands of the second dial indicator (5) can be pressed to the flange surface of the differential case (1) to be tested (101) on; The third dial indicator (6) installed on the bracket (2), the hands of the third dial indicator can be pressed to the outside of the differential case gear mounting position of the differential case (1) to be tested circle (102); The fourth dial indicator (7) installed on the support (2); Can pass through the measuring rods (8) in the two planetary shaft holes of the differential case (1) to be tested, the measuring rods (8) can be pressed onto the positioning surface of the bracket (2), and the The hands of the fourth dial indicator (7) can be pressed onto the measuring stick (8). 2. The differential case size comprehensive detection device according to claim 1, characterized in that, on the front support plate (201) of the support (2) and the rear support plate (202) of the support (2) V-shaped grooves (203) are respectively opened, and the two ends of the differential case (1) to be tested can be respectively placed on the V-shaped grooves (203) of the front support plate (201) and the rear support plate (202) in the V-shaped groove (203). 3. The differential case size comprehensive detection device according to claim 2, characterized in that it also includes a positioning block (9); The positioning block (9) is arranged on the two groove surfaces of the V-shaped groove (203) of the front support plate (201) and the two groove surfaces of the V-shaped groove (203) of the rear support plate (202) superior. 4. The differential case size comprehensive detection device according to any one of claims 1-3, characterized in that, the positioning surface of the bracket (2) is installed on the bracket (2) for supporting Position the face of the positioning reference block (10) of the measuring rod (8). 5. The differential case size comprehensive detection device according to claim 1, characterized in that, on the front support plate (201) of the support (2) and the rear support plate (202) of the support (2) There are installation positioning holes respectively; The installation and positioning holes of the front support plate (201) and the installation and positioning holes of the rear support plate (202) are respectively installed at both ends of the differential case (1) to be tested. 6 . The comprehensive detection device for differential case size according to claim 5 , further comprising a positioning sleeve installed in the installation positioning hole. 7 .